Method for opening a cylindrical pressure vessel
AssigneeAvure Technologies AB
InventorsCarl Bergman, Gert Persson
Life of this patent
Estimating the term…
Abstract
The present invention relates to a press which comprises a pressure vessel having an internal closure. The internal closure comprises a cover, a number of elements for transmitting forces in pressurized operation between the cover and the inner wall of the pressure vessel. Each element has a first contact surface adapted to fit a contact surface of the cover and a second contact surface adapted to fit a contact surface of the inner wall of the pressure vessel. Said elements are movable away from said contact surface of the cover and said contact surface of the inner wall of the pressure vessel in the direction of the longitudinal centre axis of the pressure vessel. The invention also relates to a method for opening a pressure vessel.
Claims17
A method for opening a cylindrical pressure vessel having an internal closure which includes a cover arranged for closure of the pressure vessel, the cover being arranged to assume two different closure positions in a longitudinal direction of the pressure vessel, a first closure position when the pressure vessel is pressurized, and a second closure position when the pressure vessel is essentially unpressurized, and a number of force-transmitting elements adapted to abut against a contact surface of the cover and a contact surface of an inner wall of the pressure vessel, which method comprises:
- relieving pressure from the pressure vessel;
- releasing said force-transmitting elements by moving the cover in the longitudinal direction of the pressure vessel, from the first closure position, where the cover is located when the pressure vessel is pressurized, to the second closure position;
- translating said force-transmitting elements away from said contact surface of the cover and said contact surface of the inner wall of the pressure vessel inwards toward a longitudinal center axis of the pressure vessel;
- and
- removing the cover and said force-transmitting elements.
A method, comprising:
- translating a force-transmitting element of a closure of a pressure vessel from a lock position to a release position;
- moving the closure within the pressure vessel from a first closure position when the pressure vessel is pressurized to a second closure position when the pressure vessel is essentially unpressurized, thereby locking the force-transmitting element in the lock position;
- pressurizing the pressure vessel;
- and
- transmitting pressurizing forces from a contact surface of the closure to a contact surface of a wall of the pressure vessel via the force-transmitting element.
A method for opening a cylindrical pressure vessel having an internal closure which includes a cover and a number of force-transmitting elements adapted to abut against a contact surface of the cover and a contact surface of an inner wall of the pressure vessel, which method comprises:
- relieving pressure from the pressure vessel:
- releasing said force-transmitting elements by moving the cover in a longitudinal direction of the pressure vessel, from a first position to a second position;
- translating said force-transmitting elements away from said contact surface of the cover and said contact surface of the inner wall of the pressure vessel inwards toward a longitudinal center axis of the pressure vessel;
- and
- removing the cover and said force-transmitting elements, wherein moving the cover from the first position to the second position includes lowering the cover from an upper position to a lower position, and the step of removing the cover comprises lifting the cover away from the pressure vessel.
Dependencies are inferred from the claim text.